About the Authors

Adriano Senatore

Affiliation Department of Biology, University of Waterloo, Waterloo, Canada

J. David Spafford

spafford@uwaterloo.ca

Affiliation Department of Biology, University of Waterloo, Waterloo, Canada

Competing Interests

JDS is a PLoS ONE Editorial Board member. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: AS JDS. Performed the experiments: AS JDS. Analyzed the data: AS JDS. Contributed reagents/materials/analysis tools: AS JDS. Wrote the paper: AS JDS.